Mercedes 2001 trunk lock fastener wiring diagram

Most trunk locks have a holding mechanism at the bottom edge of the trunk lid. Open lid, look at bottom edge. If you see a plate held in with two screws, remove screws, pry plate down to release lock cylinder.

Your car may have had a new ignition switch installed - hence the different key. The FOB may not be programmed properly to lock / unlock. Have you contacted a MB dealer?

Check on BBB Industries online for the wiring and component diagrams for your MB and check the appropriate fuses and or relays.

it is more than likely that the lock solenoid is not working,or the wires going to it are broken inside the trunk,also.alot of mercedes models have air operated locks that is controlled by a main box with air lines running to it .remove the liner on the left side of the trunk and take a look and make sure the vacuum lines are not pinched or broken.

Hi, if all of the locks on your Mercedes fail to open (or close) first check your key fob to make certain that its battery is working. Replace the worn out battery, if necessary. If key fob is working, you may have a faulty key fob, which can be repaired or replaced by taking it to your dealer.
If just one lock won't open on your Mercedes, then the problem may rest with broken wiring, a bad solenoid, or perhaps with a blown fuse. Check your fuse box first to determine if a blown fuse is keeping the lock from working. If so, replace the fuse.
You likely have a shorted door lock actuator, which you can replace with a new unit for the lock that is not working. If a door unlocks, but will not lock again, then replace the door switch.

Besides there is not OBD II 888 code, i have never heard or seen it before...

Isn't there botton somewere on the door or left lower conner of dashboard to open trank remotely?

Looks like the trunk lock has a problem and not locking with the rest , as the rear lock ia a master lock. You need to check it and replace if necessary.

Hi, try loosening the catch on the trunk lid but do not remove it and the lock mechanism, close the trunk lid but not fully, then pull the backseats down and climb into the trunk. Adjust the lock and latch until they meet up and lock together ( This will take some time and patience is essential). Fasten the Catch and Lock back up. Then retry opening and closing, if it still doesnt fit just do the same again, just needs a bit of adjustment.

hope this helps. jonno

Can you open and lock your doors?
If yes, then it could be the boot catch.
Try a good mercedes scrapy for the second hand boot lock unit. Dronsfield mercedes are good, 01457871717

hi,seem your steering lock mechanism is defective,if you to try,remove your under dash,you can your steering lock, loose bolt in clamp,fine a small lock drill out,then you can turn your ignition switch,you can also remove the wiring in the back of steering lock,renew your lock mechanism,ty